E507 - Include cycle detected

Cause

A container_file: include chain loops back on itself — a file includes itself, directly or through intermediate includes — so resolution would never terminate.

Example

// a.json contains:
[{ container_file: "b.json", position: [0, 0], width: 50, height: 50 }]
// b.json contains:
[{ container_file: "a.json", position: [0, 0], width: 50, height: 50 }]

How to fix

Break the loop: restructure the includes so the chain forms a tree. The error message lists the include chain in order — the last entry is the file that re-entered it.